Here is the full list of all 55 WISH - there are Paradise High achievements.
Rituko 's H Mode Complete
Rituko Achievement 100%
Acquire all standing CGs in Rituko
Pop 50 chain blocks
Pop 25 chain blocks
Pop 10 superblocks
Pop 100 heart Blocks
Hina's H Mode Complete
Hina Achievement 100%
Acquire all standing CGs in Hina
Pop 100 Bubble Blocks
Collect 50 stars
Sachiko's H Mode Complete
Sachiko Achievement 100%
Acquire all standing CGs in Sachiko
Rumi's H Mode Complete
Acquire all standing CGs in Rumi
Rumi Achievement 100%
Pop 50 heart Blocks
Pop 10 vertical blocks
Pop 10 horizontal blocks
Pop 50 bubble Blocks
Nanami's H Mode Complete
Nanami Achievement 100%
Acquire all standing CGs in Nanami
Combo five times in one move
Pop 5 horizontal blocks
Pop 5 superblocks
Superline block combo complete
Pop 5 vertical blocks
Roha's H Mode Complete
Roha Achievement 100%
Acquire all standing CGs in Roha
Pop 50 ice blocks
Pop 100 ice blocks
Pop 50 gift Blocks
Pop 100 gift Blocks
Collect 100 stars
Horizontal line block combo complete
Vertical line block combo complete
Horizontal and vertical block combination combo complete
Super block combo complete
Combo ten times in one move
Aimi Achievement 100%
Acquire all standing CGs in Aimi
Aimi's H Mode Complete
Yukino Achievement 100%
Acquire all standing CGs in Yukino
Yukino's H Mode Complete
Koharu Achievement 100%
Acquire all standing CGs in Koharu
Koharu's H Mode Complete
Midori Achievement 100%
Acquire all standing CGs in Midori
Midori's H Mode Complete