Stamp

The stamps menu in-game

Stamps are drops that provide various perks to the character's Main Weapon. To access stamps, the player must first purchase the Stamps upgrade from the Shop for 500 HoloCoins. Once unlocked, there is a chance that enemies drop a stamp on the ground when defeated.

Mechanics

All enemies have a 1/780 chance to drop a stamp when they are defeated. Additionally, Silver YAGOOs are guaranteed to drop a stamp upon being defeated. When a stamp is found and picked up, it automatically pulls up the stamps menu, where the following actions can be done to a found stamp:

• Equip it to the Main Weapon, or swap it with an already equipped stamp. Only the character's Main Weapon benefits from the stamp.
• Consume it to strengthen an already equipped stamp. The consumed stamp will not appear again for the duration of the battle. Depending on its maximum level, stamps can be strengthened up to two times.
• Sell the stamp for a number of HoloCoins. The sold stamp will not appear again for the duration of the battle.
• Drop the stamp (without destroying it) by pressing "Finish" with the stamp still in the Found box. The stamp can then be picked up later. Stamps will retain their level when dropped.

Stamps can also be accessed and managed from the pause menu. Equipped stamps will have their icons appear on the upper left corner of the screen, to the right of the HP bar and the Item and Weapon icons.

Up to three stamps can be equipped to a weapon at a time and each stamp, excluding Projectile Up Stamp, can be strengthened to a maximum level of 3. The amount of HoloCoins gained from selling a stamp is affected by the level of the stamp, the stage's coin multiplier and the Money Gain Up shop upgrade.

Note that using an upgraded stamp to strengthen another stamp will still only increase the level by 1.

List of Stamps

There are currently 20 stamps in the game.

Visit each stamp's page for level descriptions and details.

Stamp	Weight	Description
ATK Up Stamp	4	Increase damage of weapon by 15% and crit damage by 5%.
Bomb Stamp	3	Attacks have a 10% chance to cause an explosion that hits nearby targets for 30% of the weapon's damage.
Cold Stamp	3	On hit, if the player does not get attacked by the target for 4 seconds, the target may become Frozen and take 50% cold damage for 3 seconds.
Crit Up Stamp	2	Increase the chance of critical hits caused by this weapon by 10%.
Greed Stamp	3	Attacks have a 3% chance to hit HoloCoins out of targets per hit. Chance and amount is increased for every 10 damage dealt.
Haste Up Stamp	2	Reduce the time between attacks by 15%.
Knockback Stamp	3	Weapon causes small knockback. Increase knockback strength by 30% if effect already exists.
Life Steal Stamp	1	Once per second, Weapon attacks may heal a random amount up to 5% of Max HP.
Lightness Stamp	3	Decrease damage of the main weapon by 20%, and increasing SPD of the character by 20%.
Marking Stamp	3 + weapon limit	The first target this weapon hits is marked. The marked target will receive 20% of the damage inflicted on any other targets.
Pacifist Stamp	2	Weapon hits have a 10% chance to stun enemies temporarily. Also has a 20% chance to destroy enemy projectiles.
Projectile Up Stamp	1	Adds 1 additional shot to ranged multi-shot weapons.
Reverse Stamp	3	Weapon will fire backwards. There is no other effect.
RGB Stamp	2	Weapon attacks will look pretty. There is no other effect.
Size Up Stamp	4	Increase attack size by 15%.
Slow Stamp	4	Attacks have a 20% chance to slow targets by 15% and deal 30% weapon damage for 5 seconds.
Solo Stamp	3 + weapon limit	Increase damage by 5% for each empty weapon slot.
Trumpet Stamp	2	Weapon will sound like a trumpet. There is no other effect.
Unit Stamp	1	Decrease damage of the main weapon by 30%, but increase the damage of all other weapons by 4%.
Weaken Stamp	4	Attacks have a 20% chance to reduce ATK and DEF of targets by 20% and 5% temporarily. Flower.

History

For full list of changes, see Changelog.

0.6 Release

• Added stamps: Cold Stamp, Lightness Stamp, Marking Stamp, Unit Stamp. ^{[Undocumented]}
• Fixed ATK Up and Solo stamp damage stacking incorrectly on certain weapons. ^{[Undocumented]}
• Updated the following stamps:
• ATK Up Stamp
  • Has gained the effect of previous Crit Up Stamp.
    • Crit damage increase reduced from 10%/20%/30% to 5%/10%/15%.
• Stun Stamp
  • This stamp has been renamed to Pacifist Stamp and gained a new effect.
  • New effect: has a chance to destroy enemy projectiles.
    • 20%/30%/40% chance
• Crit Up Stamp
  • The effect has changed from increasing critical damage to critical chance.
    • Grants additional 10%/20%/30% crit.
• Greed Stamp
  • Chance of hitting HoloCoins out of targets has been reduced significantly.
    • From 10%/15%/20% to 3%/4%/5%.
  • Added new effect where the damage of the attack increases the chance of activating the effect as well as the HoloCoin Amount.
    • Chance and amount increased for every 10 damage dealt
• Solo Stamp
  • The increase to damage has been reduced.
    • From 20%/30%/40% to 5%/10%/15%.

0.5 Release

• Added the Stamps system.

Trivia

Main article: Stamp/Trivia