400m Relay: Second Fastest
800m Relay: Second FastestExtra Stages · River City Relay · 1/3
Clear XP2,000
Base HP50,000
Map length6,000
Max enemies10
Spawn interval0.03s
Enemy traits 
Red 
Floating 
Traitless
Red Floating Traitless Spawn timeline
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Enemies 8 types
| Enemy | Count | Mag. | HP | Attack | First | Respawn |
|---|---|---|---|---|---|---|
 Enemy No.657 | 1 | 500000% | 50,000 | 5,000 | Start | — |
 B.B.Bunny | 3 | 200% | 1,000 | 100 | 10s | 3.33–6.67s |
 Sir Seal | 3 | 200% | 5,000 | 300 | 16.67s | 6.67–13.33s |
 Large Red Ball | 2 | 100% | 4,000 | 250 | 23.33s | 23.33–30s |
 Red Wind | 4 | 200% | 10,000 | 200 | 26.67s | 20–26.67s |
 Shy Boy | 1 | 100% | 35,000 | 500 | 53.33s | — |
 St. Pigge the 2nd | 1 | 100% | 40,000 | 400 | 60s | — |
| St. Pigge the 2nd | 1 | 100% | 40,000 | 400 | 73.33s | — |
| St. Pigge the 2nd | 1 | 100% | 40,000 | 400 | 80s | — |
| Large Red Ball | Unlimited | 100% | 4,000 | 250 | 70s | 23.33–30s |
| B.B.Bunny | Unlimited | 200% | 1,000 | 100 | 70s | 13.33–20s |
| Sir Seal | Unlimited | 200% | 5,000 | 300 | 73.33s | 20–26.67s |
 Ms. Sign | Unlimited | 100% | 10,000 | 1 | 900s | 900s |
HP and attack include the magnification.
Clear rewards
If the reward chances add up to more than 100, the rows are rolled in order and each later row shares what is left.
EX stages
Clearing it has a 100% chance to open an EX stage.
Where it appears
This is an EX stage. It can appear after clearing the stages below.