Top similar games like Don't Underestimate Me:

Zone of Lacryma is a story driven vertical shmup with 11 levels, highscores, speedrunning, upgrades and more.

Space Haters is a tough-as-nails vertical shoot 'em up featuring classic arcade-style gameplay and set in the ruthless world of intergalactic music. After his sell-out gig, Photon is on his way to the greatest after-party the galaxy has seen. However, his haters want him gone. For good.

Skillfully pilot the Graceful Explosion Machine, a fighter ship armed with a ludicrously overpowered quad-weapon array! Lost in deep space, you'll shoot, dash and combo your way through jewel-hued uncharted planets, fighting an alien armada to find a way home.

Dodge and shoot your way through waves of enemies. REVO is a high speed, neon drenched space shoot ‘em up inspired by arcade classics of the 1980’s. Collect pickups, unlock powerful, ammo hungry weapons, and defeat giant bosses.

Destroy the Hapsy Crew in this shoot 'em up featuring vector graphics!

Solo Defender is a vertical space shooter game where the player clears waves of multiple enemy types and mini bosses to ultimately face off the the final Mothership and free the Janera system.

First instalment in the series of 2D action side-scrollers, taking place in very distant galaxy and not so distant future. Gameplay main hallmarks are fast-paced laser guns shootouts, punch 'n' kick combats, managing obby-like obstacles, using wits in overcoming deadly traps and witty dialogues.

A fantasy bullet hell on a strange, familiar planet. Fight the living and the dead as you figure out what's causing all this energy in the air! Play as a troupe of living puppets, curious immortal children, or a demon, and be sure to scan enemies to unlock journal pages on the way!

Umbra Galaxy is a sci-fi shoot'em'up where you pilot a spaceship adrift in the restricted space filled with enemies. Destroy enemy generators, fight your way to the bosses and secure the obscure goal in the end!

Cosmic Zephyr DX is a fast-paced 3D bullet hell game, where you duel with angels as you soar through space.

Nothing can stop the inevitable. Everything will play out, just as it has been planned. Forced Sacrifice: Lost Souls is a bullet-hell game with a storyline reaching for metaphysical and theological topics. Gather the power, get rid of demons and retake The Soul from the traitors.

Outnumbered and outgunned in deep space? No problem! Turn your enemies' attacks into pure bullet heaven with your shield tech and absorb projectiles to power up your ship and score big! But when your shield expires and it's danger time, you better switch up your strategy fast...

Nebula Invasion was designed for those who enjoy the classic type arcade games, a spaceship shooter with great game play. Aliens attack many different ways from marching to dive bombing. You have the tools to fight back with a ship that can power-up with double, triple, rapid fire, or plasma cannon.

Sanctum Arcadia is a game where you must fight your way through increasingly dangerous zones filled with enemies, hazards, and mystery. Sanctum Arcadia has a unique but still familiar progression system, challenging and engaging combat, all in a smooth Arcade-like experience.

Star Waker allows you to command customizable spaceships with the mission to show your agility in order to save mankind.

Chaotic boss-rush, bullet-hell-y, twin-stick arena shooter mayhem! Dynamically changing arena forces you to be vigilant: Watch the bullets, watch the walls!

One Way Road is a story-driven action game combining elements of Scroll Shooter, Top Down Shooter, and Tube Shooter. Take the helm of a space cruiser, explore the galaxy, and fight in stellar battles to save humanity.

INSPACE 2980 is a stylish and dynamic SHMUP from the 16-bit era of games consoles and arcade machines. Take part in an exciting adventure and save the galaxy! Once again!

Destroy hordes of enemies and save Sivinina in this RPG-Space Shooter hybrid!

Boki can copy the special abilities of any foe and then combine up to 3 of them into a unique super-weapon! Blast through hordes of evil robots in cyberspace, while training to become a superhero!

Super Forklift 3000 is an arcade space shooter with a twist: you drive a forklift that carries and shoots up to three boxes. Defeat enemies and bosses while managing your different box types. Be careful not to run out of ammo!

Star Fox meets Touhou in this action-packed sci-fi shoot 'em up, set to a rockin' synthwave soundtrack reminiscent of the Hotline Miami series. Pick one of five mech pilots and wield the eponymous HeartLinks to defend the Hydra Galaxy from the Omni invasion. Master yourself, master the machine.

Follow the story of the [Phantoms] as forces beyond their control drag them back into a vendetta in the streets, the Ulstanian-Kostakovian war they left behind rages on in the distance, and an existential threat looms over all. A visual novel with a unique design minimalistic top-down shooter game.

Pawarumi is a modern shoot’em up set in a retro futuristic sci-fi pre-Columbian universe. You’ll take control of the almighty ship Chukaru and its three unique weapons! Shoot wisely to either do double damage, heal yourself or charge your Super Attack!

Upgrade your warriors and shoot through waves of enemies in this challenging bullet hell gauntlet. Features a fast-paced campaign, boss rush mode, and a level creator for you to build, upload, and play custom stages. Master the skill trees to gain power and dominate the kingdom!

Blast through waves of alien enemies in Project AionIX! Master your piloting skills, dodge, and survive in this fast-paced space shooter!

Betrayed by her cut-throat crew, Luna Starr - former Space Pirate Captain turned bounty hunter - has a score to settle. As Luna, travel to 5 exotic planets to track down your mutinous mates, and face them in Bullet Hell dogfights to the death!

Arena 54 - Visual Novel Action Adventure is a story-driven RPG that brings the universe together in an epic war for the Crystal. Save the planet Earth simply by making the right choices. Choose wisely, or the Crystal will be lost in Doom Hammer’s hands.

Impact Trial: First Encounter is a exciting mix of bullet hell and narrative adventure in a retro sci-fi world. Face waves of enemies, make story-affecting decisions, challenge yourself with various difficulty levels... and more secrets. ¡Your story, Your choices!

Last Command is a fast-paced Snake x Bullet Hell action game. Maneuver through enemies’ barrage of attacks, collect Data Points to deal damage! Mix and match skill chips as you progress, overcome intense Boss battles, and uncover the secrets of their program world...

Spaceborne Fighters is a dynamic action platformer featuring arena battles against hordes of enemies. Explore 10 diverse maps, develop your character through skill trees, and craft items to face challenges in the most spectacular way.

Neon Fighter is a tiny arcade game packed with lasers and explosions, in which every few seconds you are forced to switch weapons automatically, making you have to adapt quickly to the new situation and re-evaluate your perspective.

桜を見ながら西瓜を割り、紅葉を見ながら鍋をつつく こんな季節に誰がした！ イレギュラーでシーズナルなシューティング幻想！

The Rush is a horizontally scrolling shoot 'em up with graphics inspired by classic space shooters of the MSX. Buckle up and see if you have what it takes to master the highly adaptive Chameleon Quartz space fighter and single-handedly obliterate the alien invaders!

Embark on an epic action-adventure as you slash, dash, and combo your way through a vast, vibrant world. Explore and uncover hidden secrets. Customize your build to triumph in spectacular boss battles. Experience a tale of mystery, magic, and mayhem in TEVI, a bullet hell metroidvania!