Mario Mania

This is a game made in 2000 for the N64 and GBC (as Mario Mania: Portable Power). Is Mario's first return to 2D with an original mainline game based off of the Mario Games from 1985-2000. See Mario Mania DS for the DS remake of the N64 Version.

Blockfield
SMB Style Grassland.

Desert Storm
SMB3 Style Desert.

Way Out Waterfall
SMBUSA Style Waterfalls.

Mary Jane Mountains
SMW Style Giant Island.

Stork Clouds
SMW2 Style Cloud Land.

Shiver Shiver Iceland
SM64 Style Iceland. (N64 Only)

Iceland Kingdom
SML Style Iceland. (GBC Only)

The Lost Warpzone
SMBLL Style Warpzone.

Final Remix
Mixed Style Bowser's Castle.