Here is the full list of all 19 Tokyo 42 achievements.
Complete all missions and get all collectables
Complete all ronin missions
Complete all roninja missions
Complete all ninja missions
Get a grenade through the hoop
Collect all the weapons
Collect all cash drops
Collect all cat skins
Unlock all secret portals
Collect all coats
Complete the story
Find all Tokyo Tourism sights
Complete Act 2
Complete the bike race
Reach highest level in copdrop
Kill yourself with a grenade
Complete Act 1
Kill three enemies with one grenade
Complete Intro