Single player, by 
This is a level using ET’s Planet 1 Version Somethingorother. The Readme has obviously been copied from the tileset’s readme, as it says instead of the level actually uploaded, that the zip contains ET’s Planet CTF 1, or something like that.
There are a bunch of normal turtles, bad tileset use, bad layout, etc. There are only three parts which present any difficulty.
One: Once you enter the Spike Ball area, unless you are very lucky, you are forced to hit one.
Two: Later, there is a going up area, where it is impossible to not hit a spike ball.
Three: At the end, there’s a Devan. Oh yay.
