Hopper is a single-player casual arcade game in which players control a frog and navigate it from the bottom to the top of the screen, crossing various obstacles along the way. In this game, the player must carefully time their movements to avoid trucks and cars on a busy road, then skillfully cross a river by hopping onto logs and avoiding crocodiles. It stands out with its simple yet challenging gameplay, retro-inspired graphics, and its availability across multiple platforms including electron, Acorn Electron, MSX, BBC Micro, Sinclair ZX81, ZX Spectrum, and web browsers, offering a nostalgic experience for classic game enthusiasts.