Super Mario Bros. But it is normal.
A downloadable game
Alt. - Jump
Ctrl. - Shoot Fireball
Left/Right - Move
Enter - Pause/Play
Download
Install instructions
Here is a browser version https://www.bestoldgames.net/super-mario-bros/play
A downloadable game
Alt. - Jump
Ctrl. - Shoot Fireball
Left/Right - Move
Enter - Pause/Play
Here is a browser version https://www.bestoldgames.net/super-mario-bros/play