Monster Crossing is the fourth Quest in The Colossingum, unlocked after completing Reinforcements. It is the first quest to feature .
Stages[]
| Opponents | Team Requires | Rewards | |||
|---|---|---|---|---|---|
| Stage 1 |
|
Any Two Monsters | 75  20 
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| Stage 2 |
|
Any Two Monsters | 100 20
| ||
| Stage 3 |
|
Any Two Monsters | 125 20
|
Strategy[]
You can train some Double Element Monsters for this Quest, but they are not needed. Optimally, your team should consist of two Monsters with moves strong against the opponent's Elements (if you have unlocked them):
- For Stage 1, use two Monsters with the Cold or Plant Elements (eg: Mammott and Potbelly)
- For Stage 2, use two Monsters with the Water or Plant Elements (eg: Toe Jammer and Potbelly)
- For Stage 3, use two Monsters with the Water or Cold Elements (eg: Toe Jammer and Mammott)
Quest Rewards[]
Completing the entire Quest rewards the following:
- 40
- Unlocks the next Quest: Backup Buddies
Notes[]
- The name may be a reference to the video game series Animal Crossing.
- This may also be because the term "crossing" can refer to cross-breeding organisms, since every stage in this quest has one double-element monster.
| Battle | Colossingum | Versus | Medals | Costumes | Trophies |
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