Secret Collect. is a homebrew port of the Homestar Runner Flash game of the same name to the Atari 2600. The premise is simple: you are Strong Bad, a red dot, and your goal is to collect the other squares that look nothing like Strong Bad. Blue squares slightly speed you up and yellow squares end the level.
MrTASer in this run completes all eight levels of this very short game in record time.
You can get the game here.