Ewww, Sticky is an Achievement in Halo 3: ODST. It is obtained when the player sticks any enemy with a Plasma Grenade or Spike Grenade 5 times on any Campaign or Firefight level. It is worth 5 Gamerpoints.
It is represented by a gold 16-pointed star, with another blue 16-pointed star within, and a blue ball with the number 5 written in it.
- This achievement is most likely a reference to the Lee R Wilson Memorial achievement from Halo 3. Both are awarded for killing enemies with adhesive grenades.