This game has been specially designed for use on the Sony PlayStation Portable (PSP) handheld console.
Controls are optimised for the PSP: Left / Right arrow keys = move, mouse click = jump, Up key = read the PDA/use sword.

The game can be quite hard in places, but it does have a Password Save and Load function to help you.
The complete list of passwords is as follows:

After the Idiotic Beaver battle: 12beav45
After the first cave section: 999cve15
After the Crash Bandicoot battle: 878crsh3
After the battle with Evil Link: 234lnk69
After the finding Kirby section: 6krb781
After the Kirby Lava Cave level: 4phl133
After the battle with Spyro and when you start using Goomba: 12ohnoe7
After the Goomba Lava Cave level and battle with Blaziken: 35gmb79
After the Jump to the Terrorist Group and Falling Knives Level: 98lst71
After the Missile Chase and Kratos Battle and the Boss Battle, Dark Mist Boo: 83gho80