Here is the full list of all 50 Doughlings: Arcade achievements.
Show Off with Bedrock 50 times.
Morph 75 times to Bedrock.
Show Off with Webster 50 times
Show Off with Gunner 50 times.
Show Off with Smash 50 times
Morph 75 times to Webster.
Show Off with Spook 50 times
Morph 50 times to Spook.
Morph 75 times to Robo.
Morph 75 times to Gunner.
Fully upgrade all heroes.
Fully upgrade Robo.
Complete 75 levels with 3 stars.
Complete all Secret levels.
Fully upgrade Webster.
Complete 75 levels.
Shot 50 Killers.
Teleport your ball 50 times between wormholes.
Heal 50 Psychos.
Fully upgrade Bedrock.
Fully upgrade Spook.
Bounce ball from hero 5000 times
Banish 100 Ghosts.
Unlock all heroes.
Bounce ball from walls 10000 times.
Morph 75 times to Smash.
Fully upgrade Smash.
Complete 50 levels.
Heal 50 Flu targets.
Fully upgrade Gunner.
Save 100 Stuck targets.
Show Off with Morpheus 100 times
Complete 25 levels.
Heal 500 Red targets.
Shot 500 bullets with Gunner.
Catch 100 balls with Robo
Destroy 100 Petrified targets.
Fully upgrade Morpheus.
Fully upgrade any hero.
Show Off 100 times.
Morph 100 times.
Heal 500 Yellow targets.
Complete 1 secret level.
Heal 500 Green targets.
Heal 500 Blue targets.
Die 10 times.
Upgrade any hero with one slot
Complete a level by clearing the screen before the time runs out.
Get your first 3 stars.
Show Off with Robo 50 times