1. spinning coins (DBP) - Demo of rotating coins dropping from the sky
2. Springs (DBP) - Demonstrates springs physics
3. text trim (DBP/DBC) - Trims the left side of text given a pixel amount, independent of font type. Useful for those wanting to make scrolling text windows using different fonts.
4. Energy Meter 2 (DBP) - Demonstrates a glossy energy meter which fades from a gradient of green to yellow to orange to red.
5. Random Tree (DBC) - Builds a random 3D tree with textured trunk and green leaves
6. Registry Access (DBC) - Demonstrates how to access key values in the Windows registry. This does not allow you to edit the registry, it is read-only.
7. Fire star (DBC) - neat 3D star that moves around
8. Intersection of 2 ellipses (DBP/DBC) - Function returns true if two ellipses touch or intersect
9. Mouse to Random Matrix (DBP) - How to retrieve the mouse's 2D coordinates and translate them into 3D and project on a randomized matrix
10. 3D Line (DBP) - uses a long plane to connect two points in 3d space. Textured with a laser effect or other image can give a good appearance of a 3d line

Code which typically deals with vectors, splines, simulations, trigonometry, geometry, collision detection and response, equations, algorithms, etc...

Code which typically involves achieving specific graphical effects such as flood fill, texture generation, or 3D special effects like particles and bloom

Graphical User Interfaces, menu systems, and UI components

Code pertaining to input/output operations or file system commands.

Anything dealing with communication over a network, local or Internet

Code which cannot be defined by any other existing category will end up here

Short mini games, most often remakes of old classics

Manipulating sound, object, or image data using memblocks