The story goes like this:
"Rumour has it that a nasty lord called Dr.Robotica was planning an attack on the Peatorians.
His real name is Dr. Flopperstein, but his interest for building nasty robots made
him change his name into Dr.Robotica. He is planning to attack the Peatorians with his
own build nasty robots to become the most powerful nasty lord and reign on Peatoria.
There is only one way to get to Dr.Robotica and that's to go through his big castle filled
with dangerous nasties including the new build robots. So, now Pea-Guy is heading for the castle
in order to stop him from launching the attack."

In Defeating Dr. Robotica Pea-Guy goes on an all-out assault on Dr. Robotica's castle and factory while facing many difficult challenges, especially the Nasty Robots of Dr. Robotica's own creation. Defeating Dr. Robotica is an action-packed shooter where you fight many different types of enemies, from old-fashioned Chompies to walking cannons, often at the same time, and can collect a wide variety of weapons from the basic sword to the highly advanced "shooties". The controls are simple and you can get into the game and start the action almost immediately, in addition difficulty can be adjusted for all levels of player.

If you buy the full version then in Defeating Dr. Robotica you get 7 more big levels to fight your way through, and you are helped by 3 new types of weapon you can use. You will face increasingly powerful robot enemies and finally get to go head-to-head with the man Dr. Robotica himself!