The Tickler is a robot gone mad. It has extensible arms and its goal is to kill everything (probably by amusing people to death). You'll encounter many different enemies and a few bosses. The closer you get to the end the more chaotic the game becomes. There are a few references to old games, such as Space Invaders and a number of upgrades that help you be more destructive (saws, lasers, tesla coils).
+ fast, bloddy and addicting gameplay
+ many enemies to tickle X-D
+ weirdsetting and chaotic++ atmosphere
- has a few bugs
Play it on Kongregate