OK, I've played through beginner, most of intermediate, and struggling on advanced. Here's my comments, good and bad.
Good:
- The parts of the GUI that are changed look amazing (though a bit hard to read)
- The levels look amazing and play great. Though there's some interior errors, the textures are awesome and original.
- Levels are fun and challenging.
- Great skies and scenery (the distant round tower things are my favorite)
- The new sounds, shapes, etc are excellent. The concept of PowerCells instead of gems is quite creative imo.
- The music is soothing and fits the game well.
Bad:
- A noticeable lack of checkpoints makes the harder and longer levels frustrating
- Many of the levels revolve around the same theme (ascending towers for example) and are unoriginal
- The speedometer is cool, but there's no real point to having it
- Init.cs doesn't work for me, thus many frictions don't work correctly
Overall comments:
MBA has a feel unlike any other Marble Blast mod out there. I can't explain the feeling in words, but it is quite different from MBG and MBP. The mod certainly lives up to its name with all the challenging levels. MBA is awesome the way it was released, but the potential for even more greatness is there. If it had been fully completed (with checkpoints, coins, the shop, launch triggers, etc), I believe it would have surpassed MBP in greatness. All the MBA staff must be commended on a wonderful job.
Overall score: 9/10