Here is the full list of all 19 Grapple achievements.
In time trial mode, complete Level 55 in under 18 seconds
Gather All Secret Collectables
Activate All Holograms
Beat All 90 Levels
Gather All Collectables
Complete 30 Time Trial Levels under Par
Complete 10 Time Trial Levels under Par
In time trial mode, complete Level 35 in under 5 seconds
In time trial mode, complete Level 23 in under 20 seconds
In time trial mode, complete Level 16 in under 15 seconds
Beat the First 45 Levels
Activate 25 Holograms
Activate 10 Holograms
Reform 100 Times
Beat the First 10 Levels
Gather 50 Collectables
Gather 10 Collectables
Complete All Time Trial Levels under Par
Complete a Speed Run under Par