Totally One Of The Best PSP Titles Out There At The Moment.

Albeit of the do-it-yourself kind. As detailed on the Playstation Blog, the process is simple:

  1. Delete your game through the PSP Home Menu (select Game>Memory Stick>press the triangle button with PixelJunk Monsters Deluxe highlighted and select Delete).
  2. Connect to PlayStation Store > Select View Downloads and re-download PixelJunk Monsters Deluxe from the Download List.

Ta-dah!