Upon purchase, you'll receive TWITCH account.
Link it to your game account to claim the following items:

1. Gingerbread Victim
2. Frozen Generator
3. Holiday Pattern
4. Rose Necklace Badge
5. Radio Mic Badge
6. Swirly Pattern
7. Trapper's Mask
8. Personal Computer
9. Clock Tower
10. Dominus Anger
11. Snapper Casket
12. Slimy Slush Badge (Slimy Slush Badge)
13. 200K Bloodpoints
14. Deadly Garden Banner
15. Hungry Plant Badge
16. Broken Skull Badge
17. Krasue Figurine Charm
18. Vee's Drum Kit Charm

NOTE: 
!!! Claim items promptly post-purchase; they may expire.
!!! Unlink the Twitch account once all items are collected.
!!! Items hidden after 6 months are still claimable.

These items can only be obtained once per account. You will only receive items that you have not received before. To receive items, you must unlink the old twitch from your game account.