Great Whack-A-Mole game! . A simple game of retro design. I hope you have fun, please enjoy. ▣ basics ▣. ▷ Eradicate the Slimes that pop out of the 16 holes on the screen. ▷ Tap once on the Purple Slime! ▷ Tap twice on the Green Slime! ▷ But don't touch the Red Slime! ▷ 3 different game modes to enjoy. ▷ Unlock various achievements to get rewards. ▣ Features ▣.