Okay. BACK ON TOPIC!
In my opinion, the perfect Rayman 2 should be like this:
Main Menu - DC version.
Number of lums - 1000
Level design - PS2 version (Secret Places)/DC version (Order).
Hub - PS2 version.
Voice acting - Rayman, Ly, Globox, Clark and the guardians - PS1 version. Polokus, Jano, Razorbeard, Cabin Boy, the general and others - PS2 version. Sound quality - PS1 version.
Language selection - PS2 version.
Minigames - Bsoccer, Bdisc, Dogfight and 2D Rayman.
Special effects - DC version.
Power upgrade - PS2 version.
Final Boss battle - Part 1, all versions. Part 2, PS1 version (followed by a scene where the Grolgoth gets stuck). Part 3, all other versions.
Vibration - PS1 version.
Extra Bosses - Ninjaws, Biditank, Chenille and Grolem 13
All different enemy types.
Unlockable Rain Mask and Lums Radar.