Rerolling in Dragon Quest Smash/Grow means wiping a fresh account and starting again until your opening weapon pulls are strong enough to carry you through early story stages. The game leans on a transmuter banner system, and the difference between a random three-star and a metal-series weapon shows up fast once slimes start swarming you in boss fights.

How rerolling works in Dragon Quest Smash/Grow
There are two layers to the reroll system. The weapon transmuter banner offers infinite rerolls toward a guaranteed three-star weapon, so you can keep spinning that one without restarting. The other featured banners, including the beginner ones, do not give infinite pulls, which is why a full account reset matters when you want a specific keep.
To reroll for real, you delete the account and begin again from character creation. The catch is account linking. If you connect your data to a Square Enix account through the in-game menu, that data is stored, and you lose the ability to wipe and restart cleanly. Keep that in mind before you tap anything in the account settings.
You can grab the game on the App Store or on Google Play before you start looping.

The account-linking trade-off
This is the one decision that changes your whole approach, so settle it before your first loop.
Skipping the Square Enix link keeps deletion simple and fast, which suits players who only care about the infinite three-star pulls and a quick metal-series keep. Linking the account, on the other hand, unlocks the official web store claim flow, and that flow feeds a much larger opening pull package. You can still delete a linked run through Data Management, but linking adds steps to every loop.
Fast reroll loop for the full pull package
Step 1: Install the game, create your avatar, and blast through the opening as quickly as you can. You can rename and re-customize the character later, so do not waste time on cosmetics during a loop.
Step 2: Finish the tutorial and take the guaranteed Steel Sword pull. Real reroll value only starts once the tutorial draw is done, so judge account quality after this point.

Step 3: Set your age, link the Square Enix account, and get the official web store claim ready. This is what unlocks all the launch tickets for the run.
Step 4: Collect the free web store reward, reopen the game, and claim every present in your box. That delivers 20 ticket pulls plus 6 gem pulls in a single cycle.
Step 5: Reroll the Metal Equipment Transmuter banner and use its free ten-pull. Aim for the three-star Metal Wing Boomerang as your anchor keep.
Step 6: Check your keep line. The safe stop is one metal-series three-star weapon. The ideal stop is one metal-series three-star plus one extra three-star before you count your guaranteed redraw.
Step 7: Take your guaranteed redraw to lock a second core weapon. Shiverstick is the most universal pickup here because it holds up across story clears.
Step 8: If a run misses, reset it cleanly. Open Home, then Menu, then Title, then Data Management, and delete the run to restart from character creation.
A disciplined loop runs around 13 minutes. Lock your keep line before you spin so you do not burn time agonizing over weak boxes.

How to delete your account and restart
Step 1: Reach the title screen. If the game just booted, you are already on the main menu. If you are mid-session, head to Camp, tap the menu button in the top right, choose Title, and confirm to return to the title screen.
Step 2: On the title screen, select Manage Data, then Delete Account. A warning will tell you this permanently erases your account information and game data. There is no way to restore it afterward, so make sure you are not deleting a run you wanted to keep.
Step 3: Confirm the deletion. Once it completes, you can make a new account and start the game from the beginning, effectively rerolling the opening transmuter banners.

Best weapons to reroll for
The Metal Wing Boomerang is the headline target. It ricochets once after striking an enemy, and it carries a boon that grants +5 percent Slime Killer. Both traits matter early, since metal enemies and slime crowds define a lot of the opening progression.
| Weapon | Where it comes from | Why it is worth keeping |
|---|---|---|
| Metal Wing Boomerang | Metal Equipment Transmuter (free ten-pull) | Ricochets after hitting an enemy and grants +5% Slime Killer. |
| Metal Slime Sword | Launch banners | Top metal-series keep for accelerating early metal farming. |
| Shiverstick | Guaranteed redraw | Most universal redraw pickup for stable story clears. |
| Steel Sword | Guaranteed tutorial draw | Reliable starter you get every run before judging quality. |
Metal-series starts scale better than a random off-focus three-star, which is why both the Metal Wing Boomerang and Metal Slime Sword sit at the top of any sensible keep list.
Where the Slime Killer boon pays off
Once you unlock the daily Metal Slime quest under the Training section, the +5 percent Slime Killer effect becomes obvious. Put the boomerang on one of your party members for that fight, and the damage bump shows up immediately against metal targets.
That quest also feeds vocation-level experience, so it doubles as a leveling tool while you find your footing. The extra Slime Killer helps you push for the highest score in the run, which is the practical confirmation that your reroll keep is doing its job. If your early boss fights still get overwhelmed by slime crowds, that is the cue you settled for too weak a box and may want one more loop before committing to story progress.