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