Castlejano runs through his castle and needs to smash boxes.
Do combos to achieve a higher score.
UP Key - High jump to smash a box
Space - Small jump to avoid spikes on the ground
R - Restart
P - Pause
M - Mute/unmute music
S - Mute/unmute sounds
A context menu should be shown when right-clicking or, on touch devices, long-pressing in the game. This menu especially allows to play in full screen and control the volume.