Here is the full list of all 9 Overdriven Evolution Demo achievements.
[Story Mode] Complete the Stage 1 with at least Hard difficulty.
[Story Mode] Finish the 1st stage with Nightmare difficulty.
Complete a stage with a score of 1 000 000 pts.
Complete the 1st stage.
Get 1000 hits with the "Hits Counter"
Open a door with an interruptor.
Pass near from a bullet.
Get 5000 hits with the "Hits Counter"
Complete a stage with a score of 5 000 000 pts.