The game is called Go Go Princess - Punishment Edition! - and is purposely annoying to operate and play. Select 'start new game' with the mouse, and jump by hitting space-bar; after a while the game may 'misbehave' in strange ways in the browser due to all sorts of things leaking from the code, hit CTRL+F5.
Plot: It is your task to save the Fat Princess from the Lazy Valkyrie.
Controls: Press space to jump.
Level editor: Find the easter egg ("w" is Wagner mode and "b" is Banjo mode)
Team: mkh (gfx), pbn, tlk & mk
Game: Play it online!
its coming its coming..