This is a good example of what early Sonic 2 hacks were like, so while it's nothing amazing now, it's still pretty neat for its time.



Graphics: Most of the graphics are palette swaps of the original game, the exceptions being Shadow, the Chao, the HUD, and the first zone's background. The colors chosen are pretty decent, and the moon on the water in the first zone is rather well-animated. Shadow and the Chao look the way you'd expect, and fit right in with the other graphics.



Sound: The sound was taken from the 2-player mode of the original, so it's definitely great, and it fits the new levels well enough.



Addictiveness: Unfortunately, the levels don't have much to explore, there's no proper "ending", and no Chaos Emeralds, meaning that there's no reason whatsoever to replay this.



Depth: In addition to what's mentioned above, the game only has four stages, so it won't last you long. The level design is pretty good, albeit linear and occasionally cheap.



Difficulty: Apart from a few cheap deaths, the difficulty's about the same as the original, which wasn't very hard to begin with.



Overall, take a look only if you want a perspective on how far hacking has come since this.

Nice job here. It's spaced well, and categorized. While more depth would be good, this is all in all, a good review. Keep on writing.

Glad you liked it! I'll keep writing, I enjoy doing these.
To be honest, there really isn't a whole lot to say about this hack, since it's so short.
I forgot to mention that two bosses are indeed present,
but they're basically the same as the original.

It had potential, I think it just needed more stages, bosses, and at least one ending.