How to Get Stat Rerolls in 8 Bit Tower Defense and Where to Spend Them
Stat Rerolls in 8 Bit Tower Defense come from redeeming codes like UPDATE1 and HALLOWEEN. Here's how to get them and where to spend them on your units' stat grades.
Quick answer
You get Stat Rerolls in 8 Bit Tower Defense by redeeming working codes — UPDATE1, HALLOWEEN and HALLOWEENPT2 have all granted them — and you spend them on a unit's Stats sub-tab, where the REROLL GRADES control takes Stat Rerolls (or Gems) — the sampled screen showed '45 Stat Rerolls (or Gems)' on a unit holding 45, so the exact per-reroll price wasn't confirmed.
- UPDATE1: 15 Stat Rerolls
- HALLOWEEN: 25 Stat Rerolls
- HALLOWEENPT2: 15 Stat Rerolls
- Spent via REROLL GRADES on a unit's Stats sub-tab (Stat Rerolls or Gems)
How to get Stat Rerolls in 8 Bit Tower Defense
Redeeming codes is the established way to get Stat Rerolls. A code list updated November 12, 2026 reported three active codes that grant them:
UPDATE1— 15 Stat Rerolls, plus 2.5k Gems, 10k Gold and 15 Trait RerollsHALLOWEEN— 25 Stat Rerolls, plus 3k Gems and 25 Trait RerollsHALLOWEENPT2— 15 Stat Rerolls, plus 2.5k Gems, 10k Candy and 15 Trait Rerolls
Codes are one-time rewards: once a code has been redeemed on your account, it can't be redeemed again. That makes codes a starting stock of Stat Rerolls rather than something you can farm repeatedly, so it's worth redeeming every working code you can. Code lists change over time — this one was updated November 12, 2026, so check the maintained 8 Bit Tower Defense codes page for the current list before relying on any specific code.
The three codes together give 55 Stat Rerolls (15 + 25 + 15). HALLOWEEN alone is the biggest single source at 25.
These codes also pay out Gems alongside the rerolls, and that matters here: the reroll control accepts Gems as an alternative payment, so the Gem portions of code rewards feed directly into rerolling too. The same codes bundle Trait Rerolls, a separate currency used on traits — see how to get Trait Rerolls for that side.
Where to spend Stat Rerolls
Stat Rerolls are spent on individual units. Open a unit's detail screen and switch to the Stats sub-tab — that's where the REROLL GRADES control takes Stat Rerolls (or Gems) — the sampled Chameleon screen showed '45 Stat Rerolls (or Gems)', so the exact per-reroll price wasn't confirmed. This was observed on the Chameleon's stats screen, so that's the layout to expect on your own units.
Two things on that screen are worth understanding before you press the button:
- Stat grades — the grades shown on the stats screen are measured against S tier ("Each grade lands in S tier below"). Rerolling grades is how you take another roll at a unit's stat grades, which is what players use Rerolls for alongside summoning new units.
- Potential — the stats screen also shows a Potential value (the Chameleon showed 45/2,000, described as defeats) with the note "Rerolling empties it." In other words, rerolling a unit's grades resets that meter, so factor that in before confirming a reroll.
How many Stat Rerolls do you need?
The reroll control accepts Stat Rerolls (or Gems); the exact per-reroll price wasn't shown, so redeem every working code to build a buffer first. The Gems from those same codes give you a second way to pay if you'd rather save the rerolls. For what to do with the units you're upgrading, the units list and tier list help you decide which unit's grades are worth rerolling first.