I would give it 10/10 but Samus Aran got stomped :(
I have played and beaten this about 5 times now. As a huge NES player during my childhood, I feel it's safe to say that this is the greatest tribute of all time. The LOZ dungeon was brilliant, Double Dragon was obviously needed (Since this IS Abobo) and everything else was just smashing, mate.
However, the LOZ dungeon... wellppppp it was too easy, IMO. I mean there were only a couple enemies, you have tons of health, and when you kill an enemy they never come back. Also it was kinda tedious backtracking and constantly searching for items. A little less tedium would have felt more LOZ-like.
This is pretty awesome ... The mario water level was quite hard to control with a mouse not involved.
I loved the changing play styles, well done!
Great game but one minor bug:
If you completely fill your Rage Meter, while on the conveyor belt fighting Gavin, you get thrown into the pit, die, and lose all control of Abobo.