Use the cursor keys to move left and right. The more you run in one direction the faster you will go. Use Up to jump.
Collect everything you see, including keys which you need to exit the level. You can jump on the bad blokes, but avoid fish at all costs. Like I said, just like Mario.

Tux on the Run - Java 1.1 game by Lennart Steinke http://www.steinke.net