Hamumu has a number of Webgames, games which are playable on the Hamumu website itself. These include:
- Dumb: The Game (http://www.dumbthegame.com) (this is actually a separate website)
- Dumboscopes (http://hamumu.com/dumboscope.php)
- DumbWords (http://hamumu.com/dumbwords.php)
- Infinite Deadly Islands of Terror (http://hamumu.com/pirate.php)
- Maze Of Ludicrosity (http://hamumu.com/maze.php)
- Mia's Happy Day (http://hamumu.com/miaday.php)
- Random Fun (http://hamumu.com/random.php)
- Robot Wants Kitty (http://hamumu.com/robotkitty.php)
- Robot Wants Puppy (http://hamumu.com/robotpuppy.php)
- Robot Wants Fishy (http://hamumu.com/robotfishy.php)
- Robot Wants Ice Cream (http://hamumu.com/roboticecream.php)
- Still Pond (http://hamumu.com/stillpond.php)
- The Acronym Game (http://hamumu.com/acronym.php)
- Two Roads (http://hamumu.com/tworoads.php)
- The Great Pumpkin's Field (http://hamumu.com/pumpkin.php) (Only playable during the month of October as part of the Best Halloween Ever)
- Hamumu Word Search (http://hamumu.com/wordsearch.php)
- Zoobedoo (http://hamumu.com/zoobedoo_ld.php)
A variety of webgames have been written by Jamul for other websites, chief amongst them Boys' Life magazine.
- Pedro's Space Adventure 2
- Mad Planet
- Pedro And The 100-Year Quest
- Ollie Goes To Town
- Pedro And The Pearls of Peril
- Pee Wee's Nightmare
- Scouts Vs. Aliens
- Pedro Kicks Back
- Dredd Speed and the Robot Rebellion