Epic way
Sneak in
1. Pick
2. Plane
3. Straight
4. Super mushroom
5. Gears

Bust in agressive
Go fast you have to be ready to click things
1. Ram
2. Shield
3. Throw cable
4. Rock
5. Bubble
6. Diamond

Sneak in Undetected

1. Teleporter
2. Penny
3. Wire
4. Hammer
5. Plank
6. Diamond

For the mystery Acheivement ??? On the Undetected Route Use the portal Gun Instead of the Wire then read the fail message carefully.