Bronze

Poison Mushroom
Score 100,000 points in Time Trial

Miss Strawberry
Score 500,000 points in Time Trial

Count Pork
Score 1,000,000 points in Time Trial

Mr. Caterpillar
1 or more Numblasts in Time Trial

Toxic Spider
Complete lv. 10 in Endless Mode (easy)

Swan Princess
Complete Lv.10 in Endless Mode (normal)

Bat Panda
Complete Lv.10 in Endless Mode (hard)

Eat my Stuff Teddy
Complete Lv.30 in Endless Mode (easy)

Devilish Fawn
Complete Lv.30 in Endless Mode (normal)

Little Dolly Marie
Complete Lv.30 in Endless Mode (hard)

Self-evolving Cat
1 or more Numblasts in Endless Mode

Phoenix
Clear Puzzles 1-25 in Puzzle Mode

Frog Prinze
Receive Gold Crown in Puzzle Mode

Silver

Akasaka Sempai Bunny
Complete Lv. 50 in Endless Mode (hard)

Gold

Akasaka Imposter
Receive Gold Crown for all puzzles

Hopefully this should help you all in getting these trophies, since they are all actually secret. Enjoy!