From the Super Mario Wiki
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The level features two Mini Marios.
The Mini Marios begin on a platform on the upper level on the left, with the exit door on the bottom left. In order to reach it, the Shy Guy must be de-elevated so that the Mini Marios can take it out with the Hammers on the middle level.
Mini Mario Card
The Mini Mario Card is located on the middle level, atop a platform on the right. The Mini Marios must be led to it via reversing the direction of the conveyors just after they both get off the first one with precise timing, which will lead them to the collectible.
In order to earn a trophy, the player must score 15800 points.
In order to earn a trophy, the player must score 15200 points.