Packs allow you to collect the Ecto-Plasm that is obtained from the ghosts. Each backpack has a certain capacity and once full will tell you to go sell your Ecto-Plasm. The bigger pack you have, the more you are able to hold at one time.
| Place (Shop) | Pack | Capacity | Cost |
|---|---|---|---|
| Spawn | Starter Pack | 50 | Free |
| Spawn | Sub Pack | 150 | ??? |
| Spawn | R.I.P Pack | 500 | ??? |
| Spawn | 8-Bit Pack | 1,500 | ??? |
| Spawn | Hex Pack | 4,000 | ??? |
| Spawn | Energized Pack | 8,500 | ??? |
| Spawn | Charged Pack | 19,000 | ??? |
| Spawn | #2 Pack | 35,000 | ??? |
| Spawn | Turbine Pack | 90,000 | ??? |
| Spawn | JETPAC | 200,000 | ??? |
| Spawn | Scuba Pack | 400,000 | ??? |
| Spawn | Void Pack | 1,000,000 | ??? |
| Spawn | Chroma Pack | 2,500,000 | ??? |
| Spawn | Distorted Pack | 3,500,000 | ??? |
| Ghostly Islands | Hotrod Pack | 5,000,000 | ??? |
| Ghostly Islands | Starfighter Pack | 7,000,000 | ??? |
| Ghostly Islands | RFT-87 Pack | 12,000,000 | ??? |