Pentablocks is a free Arcade game you can play instantly in your browser, with no download and no registration. How to play: WASD Arrow Keys - Dodge Move in all directions R - Restart level. It renders at 1280 by 720 pixels and scales to your window. It joined SaGo Games on October 29, 2026. It is an HTML5 build, so it loads in any modern desktop or mobile browser.
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.