A Piece of Rainbow's End is a C-grade treasure. It is obtained by upgrading the pet Rainbow's End to Lv. 8.

Equipped EffectEdit

With upgrades your pet will get 1.5-2.5x bigger in Bonus Time.


It longs to reunite with Rainbow's End, looking for it each Bonus Time.


Level Skill Effect Coin Upgrade Cost Crystal Upgrade Cost
0 Pet grows 1.5x in Bonus Time N/A N/A
+1 Pet grows 1.6x in Bonus Time Coin 001 2,800 CookieRunCrystal 2
+2 Pet grows 1.7x in Bonus Time Coin 001 4,200 CookieRunCrystal 3
+3 Pet grows 1.8x in Bonus Time Coin 001 5,600 CookieRunCrystal 4
+4 Pet grows 1.9x in Bonus Time Coin 001 7,000 CookieRunCrystal 5
+5 Pet grows 2.0x in Bonus Time Coin 001 8,400 CookieRunCrystal 6
+6 Pet grows 2.1x in Bonus Time Coin 001 9,800 CookieRunCrystal 7
+7 Pet grows 2.2x in Bonus Time Coin 001 11,200 CookieRunCrystal 8
+8 Pet grows 2.3x in Bonus Time Coin 001 12,600 CookieRunCrystal 9
+9 Pet grows 2.5x in Bonus Time Coin 001 14,000 CookieRunCrystal 10

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