Addictiveness: 10/10

I keep coming back to try for a better high score. It's probably the most addictive game on my calc.

Challenging: 10/10

When about 7 or 8 lemmings get on the screen at the same time, this game gets extremely challenging and intense. When I get them all to the other side without losing any, it makes me feel good. The shark and occasional bombs spice up the game after you play for a while.

Graphics: 9/10

They are very good, but the background is always exactly the same.

Controls: 10/10

The keys make sense and allow you to move the life raft very quickly, which you will need to do to avoid dropping any lemmings.

Overall: 10/10 of course