Super Bitcoin Boy is a Mario-style platformer with a cryptocurrency theme: run and jump through side-scrolling levels, squash enemies, and collect the bitcoins scattered along the way.
The platforming is conventional in the best sense — the physics behave the way the genre taught everyone to expect, so it's immediately playable.
A conventional Mario-style side-scroller — run, jump, squash enemies and collect items, themed around bitcoin.
Yes — a cartoon platformer with no violence beyond squashing enemies.
Yes — on-screen arrow controls. Nothing to install.