| Standard | ABR |
[Source]
Round 1 is the first round ABR. Instead of 20 Red Bloons like in the normal Round 1, it's 10 Blue Bloons with large spacing.
Since ABR starts at Round 3 along all normal Hard Difficulty and its directly related game modes, the only way to play those rounds are in challenges (Challenge Editor), Odyssey Mode, and Odyssey Creator.
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