Pentablocks

Arcade .io .io Games 1 Player 2025 games 2D Arcade
Click to playLoads the game — free, no download
Verified working Instant play — no download

About Pentablocks

Pentablocks is an intense bullet-hell dodging game channeling Slopes infamous red blocks and Undertale-style battle evasion. Maneuver your dot with precise WASD controls through endless barrages of sharp pentagonal red obstacles in a neon void. Survive escalating patterns, chain perfect dodges, unlock modes, and hunt high scores in this pure skill-based, addictive browser reflex tester&—; no shooting, just survival.

How to play

Start a round and you will need to aim, fire and clear each wave of enemies while staying alive. You steer with WASD or the arrow keys. On a phone or tablet those same actions sit on buttons over the screen. Nothing is hidden behind a tutorial, so the fastest way to learn it is simply to play.

Controls

W A S DMove
Arrow keysMove (alternative)

In-game guide: WASD Arrow Keys - Dodge Move in all directions R - Restart level

Features

  • Satisfying shooting with escalating enemy waves
  • Classic arcade pacing rebuilt cleanly in HTML5
  • Multiple levels that keep raising the bar
  • Upgrades and unlocks to work towards
  • A high-score chase that keeps pulling you back

Tips & tricks

Here is the habit that pays off fastest. Deal with the closest threat first and keep moving — standing still to line up a perfect shot is what usually gets you hit. Everything else comes down to practice, so treat the early losses as cheap lessons.

Game details

CategoryArcade
Plays inBrowser (HTML5)
PlatformsDesktop & Mobile
PriceFree
Sign-up neededNo
DeveloperGameMonetize partner
Same genre

More Arcade games

See all