Mkbul's Textures 1.00 Over 20 textures from Mkbul, these were originally created for Marble Blast Platinum. Most of these include additional hue re-coloring of several series of textures.
A package of the entire shapes directory with items re-colored. Back up your original shapes directory before using this.
The original City Sky from LilBenny
MadMarioSkills's new enviro_map files for all MBP skyboxes - good for reflection on marble, items and other shapes.
14 textures split to two series. Install in your interiors directory.
MarbleDuck's own version of a City Sky
A reflection sky map for the pipes and others. To make the neon pipes glow on your model, use Torque DTS Plus. When using the plugin, use the following material edits to make these appear to be solar:
1. Translucent: Additive
2. Self illumination
3. No mipmapping
4. Env mapping: 1
Enjoy the reflection texture.
Hunt for the gems in this somehow elevated arena. Use the Speed Boosters to your advantage.
A few more textures of various unknown authors. Install in your interiors directory.
Don't fall through the ropes on this dangerous bridge!
A lot of custom textures for use. Install those in your interiors directory.
River terrain shape
Two custom textures choices by Tech Geek for MBG. Make sure you back up your original interiors directory (all textures) before using this.
Here is a vigorous course that focuses on edge hits called, "Edge Hit Ultra Course".
A high resolution glow for Super Bounce and Shock Absorber powerups with several skin choices.
Rightside Dizzy 1.0.2 
Bend the laws of gravity until they break!
A couple of textures from Mato Komuth. Install in your interiors directory.
threefolderskies 1.00 Three skyboxes for use.
IMPORTANT: When using any of these skies in your own levels and releasing it, please credit Threefolder in some way.
Here is the real new level that focuses on the jump boost called, "Jump Boost Master Course".
Over 25 textures whose author(s) are unknown.
UltraRobot's first custom level for Multiplayer.
Second revision of a custom Super Jump shape
The levels from December 10-15.
A collection multiplayer level with three stories. Each one has a different style. There are teleporters on the towers. If you have a slow computer, this level is most likely to lag.
Four windows (three with glass).
Two custom Super Bounce shapes. One has an arrow on top, the other doesn't.