Here is the full list of all 37 Frog Hop achievements.
Deal With It
Beat the game on normal or higher
Defeat a boss with 1 health left
Jump off of 20 or more enemies in a row
Touch a Black Heart and not get killed
Jump off of 10 or more enemies in a row
Beat a level while invisible
Super jump with a green grasshopper and Boost Pendant equipped
Fire a Blue Stun Shot using the Buster Pendant
Create a trampoline with a lightning bug
Perform a Timed Jump with the precision charm
Only the truest of gamers experience this game at such a resolution
Try out the Extended View option (Options>Video)
Was that an earth…Quake?
Deflect a projectile with your charge up spin attack
Defuse an EVIL LIFE FACE pickup
Stun an enemy with the blue dragonfly
Create 6 spider webs.
Skate on ice
Take out gray guppies with your tongue attack
Launch yourself in the air with A BOMB
Swim in a Water Stream with the Flippers
Beat a level with the Speedy Sneakers
Collect a gold heart!
Take out an enemy with a bee
Jump off of two enemies
Wear a hat!
Defeated Boss 1
Game Complete
...for frogkind?
Defeated Boss 4
Defeated Boss 3
Defeated Boss 2