Sonic hacks can be classified in many ways, but this one is considered as a graphic hack, in which the hacker changes the original level graphics to make a brand-new level. Using the Debug Mode of the original Sonic The Hedgehog 2 game allows a hacker to plan a graphic hacked level. But now, let's move to the aspects:

Graphics - 7
Graphically, this hack offers, as I have told, new organization of sprites to create brand-new and a bit challenging levels. The night level is one of the hot spots of the hack. I have also to mention that the Selbi's "trial and error" technique has been applied in that same level. By letting the pillars (in Ivy Lakes Act 2 boss fight) close, the creator of this hack added some sort of challenge in this boss fight, not letting people go over the pillars (otherwise they will get crushed). The HUD is simply awesome, it really is à-la-Shadow. Speaking of it, the Shadow sprites are good, but when he's waiting, it is just a black Sonic sprite. There's lack of sprites for Chao's (Shadow's sidekick) spin dash move. But there's a huge problem: playing this hack in "Vizzed Score Attack" bugs the entire HUD, disappears the ring and monitor sprites; and all badniks become "GIJI". This should be fixed. I wished Maria Robotnik The Hedgehog should be Shadow's sidekick...

Sound - 7
Honestly, the sound is a bit quite good. The Midnight Hill Zone's music is a bit catchy and the Hidden Base Zone's music is very good. But the Ivy Lake Zone's music is very boring! Action sounds (attack, spin dash, jump, etc.) keep the same as in the original Sonic The Hedgehog 2.

Addictiveness - 6
This is a suitable hack for regular Sonic The Hedgehog game players. A spice of challenge let the game become a bit addictive. But the fact that the hack is too short (only has 3 zones) penalizes the addictiveness factor.

Depth - 4
The game is quite small, it needs to have even more levels.

Difficulty - 7
Sprite reorganizing adds spices of challenge in this game.

Overall - 6.2
Notes for the hack creator: change the music in Ivy Lakes Zone and replace Chao with Maria Robotnik The Hedgehog.
Notes for RGR staff: please correct the graphical issues when playing this hack in "Vizzed Score Attack".
My overall opinion: this is a quite good hack, it has challenging levels and everything a basic, but good Sonic The Hedgehog 2 hack. Graphical issues must be fixed, while one music must be replaced.

I'll try the game out some time. You are doing a lot of great reviews keep up the good work, and soon you will be on the top 5 reviewers list.

This is a pretty good review. It could use a little more detail, especially in the depth and difficulty sections, but overall it's ok. Keep making more reviews, just try to add a little more detail and explain yourself better.