Brainsnag answers
Every level, with three spoiler-free hints before the solution.
Level 1
Fastest VehicleLevel 2
Light the LampLevel 3
Duck CountLevel 4
Pizza PartyLevel 5
Feed the HippoLevel 6
Finish the EquationLevel 7
Melt the IceLevel 8
Sleepy CatLevel 9
Wake the GuardLevel 10
Stop the LeaksLevel 11
Under the DoormatLevel 12
Marble RunLevel 13
Upside-Down KeyLevel 14
Scratch to WinLevel 15
Cookie JarLevel 16
Cool the CoffeeLevel 17
Odd One OutLevel 18
Squeeze the CloudLevel 19
Longest LineLevel 20
The TallestLevel 21
Balance the ScaleLevel 22
The Real Red ButtonLevel 23
Fix the EquationLevel 24
Apple TreeLevel 25
The VaultLevel 26
Letter HuntLevel 27
Tiny SignLevel 28
Pump ItLevel 29
Do NothingLevel 30
Beat the Troll
Fastest VehicleLevel 2
Light the LampLevel 3
Duck CountLevel 4
Pizza PartyLevel 5
Feed the HippoLevel 6
Finish the EquationLevel 7
Melt the IceLevel 8
Sleepy CatLevel 9
Wake the GuardLevel 10
Stop the LeaksLevel 11
Under the DoormatLevel 12
Marble RunLevel 13
Upside-Down KeyLevel 14
Scratch to WinLevel 15
Cookie JarLevel 16
Cool the CoffeeLevel 17
Odd One OutLevel 18
Squeeze the CloudLevel 19
Longest LineLevel 20
The TallestLevel 21
Balance the ScaleLevel 22
The Real Red ButtonLevel 23
Fix the EquationLevel 24
Apple TreeLevel 25
The VaultLevel 26
Letter HuntLevel 27
Tiny SignLevel 28
Pump ItLevel 29
Do NothingLevel 30
Beat the Troll