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Tap/Click to switch the gravity to avoid spikes.

Levels are randomly generated to increase replayability without getting bored.

Play FFFFFF Online Game. One of many Reaction time Games to play online on your web browser for free at KBH Games. FFFFFF is also a cross-platform game that be played on a mobile phone, tablet, and computer. Tagged as Arcade Games, Reaction Time Games, and Skill Games. Upvoted by 16 players. Other games you might like are Brick Builder and UFO Rush. No download or installation needed to play this free game. Hope this game brings a little joy into your daily life.