What you get is the marble, the level itself, and the clouds. No bright flashes, no background annoyances, etc. It's pretty to look at, very colorful, and easy on the eyes. The hard levels are pretty insane with a few easy ones mixed in.
The intermediate levels are a definate mix of easy and difficult.
Marble Blast Ultra is really fun and really challenging. I SUCKED at it, but was addicted to it none the less. Move said marble down paths and through obstacles to finish line. I don't know who remembers it or not, but Marble Madness is class awesomeness.