Sure, here's an example of a simple HTML game that meets your requirements:
You can save the above code in an HTML file and open it in your browser to play the game. The game board is displayed as a 10x10 grid where you control the blue cell using arrow keys to collect the targets (represented by "
💠"). Avoid the obstacles (represented by "
🦠"). Each time you collect all the targets, you move to the next level. There are 2011 levels, and each level gets progressively harder.