Ok, normally I would have to toss a game of this little depth into the "not worth reviewing" bin, but I'm making an exception for Rodent's Revenge on the ground that this 18 year old relic represents one of my first experiences with computers back when I was wee lad. This 200kb download is pretty much a definitive coffee breaker, so if you're looking for something to occupy more than 15 to 20 minutes of your time, I would just move along.
Rodent's Revenge is really quite simple. You play as a mouse who finds himself in a field of blocks and cats. Your only defense and weapon against these cats are the blocks strewn around the room which you can push around. You must completely trap a cat by pushing the blocks and confining him to an area no larger than one space, at which point, for some reason, he becomes a piece of cheese worth 100 points. However, you must also prevent being eaten in the process by making sure that you are always walled off from the cats by at least one layer of blocks. These cats can move between two diagonal blocks, however, you can move much faster than the cats, which seem to take about one step every second.
You start each game facing one cat, but more will spawn giving you more opportunities for points. Also, in the event of multiple cats, you must trap both before dining on their cheesy corpses. Eventually, you progress to the next level which features a few non-moving blocks, making your task more difficult. Eventually, you will face mousetraps that kill you, sinkholes that trap you for a few seconds, and fewer and fewer movable blocks to use.
That's really all there is to this game. When I found it, I found myself quite excited at the prospect of reliving my childhood memories, and I did just that. Then I realized that I was most definitely more easily pleased at that age. Rodent's Revenge is rather fun for such a simple concept but will bore most players quickly. However, it's definitely worth the two second download if you literally need something to drink coffee over.