Bugfixing

• Y button on Shop/Choice/Mystery Location/Reroll scaled properly
  
• Train now stops properly if it hits an obstacle while charging Overfill
  
• Camera now resets properly after exiting Shield Plate
  
• Overdrive and Overfill now stack, ending Overdrive while Overfill is on returns to Overfill speed instead of default speed
  
• Both players can reroll now in Coop
  
• Previous Shop can no longer be reopened by pressing Y during a level