Famicom

Controls

Key	Action
Enter	Start/Pause
Space	Select
←↑↓→	Move
`Z`	Gamepad B
`X`	Gamepad A

Console

`0` (zero)	Full screen
`Q`	Quit and restart game
`R`	Random game
`,` (comma)	Previous game
`.` (period)	Next game

Thanks to WebAssembly, NES emulator, and Internet Archive.