Your mission is to get across the bugs and get into the water. (I mean tiles at the top, you should not try swimming with your computer/device).
Don't let the bugs touch you, or you'll have to start over.
All you need is the arrows on the keyboard to move, and occasionally the 'R' button. You can trash the rest of your keyboard keys.
When you get to the watery tiles, you can restart by pressing R on your keyboard.
Also, pressing 'R' at any moment will reset the game.
Load index.html in your favourite browser, bugs don't care.
Have fun!