Here is the full list of all 100 Mosaique Neko Waifus 5 achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
VIEW 100 PHOTOS
SOLVE 3 PUZZLES WITH SEDUCED FIA
SOLVE 1 PUZZLE WITH SEDUCED FIA
SOLVE 4 PUZZLES WITH FIA
ALL GIRLS JUMP OUT OF THEIR CLOTHES
SOLVE 3 PUZZLES WITH SEDUCED KUMI
SOLVE 1 PUZZLE WITH SEDUCED KUMI
SOLVE 4 PUZZLES WITH KUMI
SOLVE 20 PIECES USING "FLIP ALMOST SOLVED"
"FLARE" FIRED 15 TIMES
VIEW 10 PHOTOS
FIRE "CHOCOLATE AIRSTRIKE" 30 TIMES
FIRE "EARTHQUAKE" 10 TIMES
SOLVE 5 PUZZLES WITH SEDUCED TAMI
SOLVE 1 PUZZLE WITH SEDUCED TAMI
SOLVE 1 PUZZLE WITH KUMI
SOLVE 1 PUZZLE WITH FIA
SARA FIRST PUZZLE SOLVED
SARA FOURTH PUZZLE SOLVED
SOLVE 4 PUZZLES WITH TAMI
SOLVE 1 PUZZLE WITH TAMI
COLLECT 7 UNSPENT ABILITY POINTS
COLLECT 33 ITEMS
CLICK A PIECE WITH "SECRET PRESENT" 5 TIMES
COLLECT 30 ITEMS
SOLVE 33 PUZZLES
SOLVE 1000 BLOCKS
GAIN 30000 EXPERIENCE
SOLVE 7 PUZZLES WITH SEDUCED NIKO
CLICK THE PUZZLE PIECES 1500 TIMES
CLICK A PIECE WITH "SECRET PRESENT"
SOLVE 900 BLOCKS
SOLVE 30 PUZZLES
UNLOCKED "EARTHQUAKE" IN SKILL TREE
SOLVE 800 BLOCKS
UNLOCKED "SECRET PRESENT" IN SKILL TREE
UNLOCKED "CHOCOLATE AIRSTRIKE" IN SKILL TREE
COLLECT 25 ITEMS
UNLOCKED "FLIP ALMOST SOLVED" IN SKILL TREE
SOLVE 700 BLOCKS
SOLVE 25 PUZZLES
SOLVE 1 PUZZLE WITH SEDUCED NIKO
SOLVE 600 BLOCKS
CLICK THE PUZZLE PIECES 1000 TIMES
UNLOCKED "FLASH BOMB" IN SKILL TREE
LEVEL UP TO LEVEL 30
COLLECT 20 ITEMS
CLICK THE PUZZLE PIECES 900 TIMES
"LOVE SPARKLE" FIRED 50 TIMES
SOLVE 500 BLOCKS
SOLVE 20 PUZZLES
CLICK THE PUZZLE PIECES 800 TIMES
LEVEL UP TO LEVEL 25
GAIN 10000 EXPERIENCE
SOLVE 4 PUZZLES WITH NIKO
CLICK THE PUZZLE PIECES 700 TIMES
SOLVE 400 BLOCKS
LEVELED 20 ABILITIES IN TOTAL
CLICK THE PUZZLE PIECES 600 TIMES
LEVEL UP TO LEVEL 20
UNLOCK LOVE PUNCH IN SKILL TREE
SOLVE 300 BLOCKS
COLLECT 15 ITEMS
SOLVE 15 PUZZLES
CLICK THE PUZZLE PIECES 500 TIMES
UNLOCKED "LOVE SPARKLE" IN SKILL TREE
GAIN 5000 EXPERIENCE
LEVELED 15 ABILITIES IN TOTAL
CLICK THE PUZZLE PIECES 400 TIMES
LEVEL UP TO LEVEL 15
SOLVE 200 BLOCKS
"LOVE PUNCH" FIRED 10 TIMES
CLICK THE PUZZLE PIECES 300 TIMES
COLLECT 10 ITEMS
SOLVE 10 PUZZLES
CLICK THE PUZZLE PIECES 200 TIMES
UNLOCKED "FLARE" IN SKILL TREE
LEVELED 10 ABILITIES IN TOTAL
SOLVE 100 BLOCKS
LEVEL UP TO LEVEL 10
COLLECT 5 ITEMS
SOLVE 5 PUZZLES
CLICK THE PUZZLE PIECES 100 TIMES
UNLOCKED HOT-DOG OF LOVE IN SKILL TREE
UNLOCKED "PEEK" IN SKILL TREE
COLLECT 4 ITEMS
COLLECT 3 ITEMS
LEVELED 5 ABILITIES IN TOTAL
COLLECT 2 ITEMS
SOLVE 2 PUZZLES
LEVEL UP TO LEVEL 5
CLICK THE PUZZLE PIECES 50 TIMES
COLLECT 1 ITEM
SOLVE 1 PUZZLE
SOLVE 1 PUZZLE WITH NIKO
CLICK THE PUZZLE PIECES 10 TIMES
LEVEL UP TO LEVEL 2
CLICK THE PUZZLE PIECES 1 TIME
SOLVE 1 BLOCK
HELLO THERE!