Improved First Play Experience

UPDATES V 1.1.8

 - Added "training" map, which is just the first portion of the "first leap" map.
 - Added updated map images to the stage select.
 - Added informational notices when each rider is obtained for the first time.
 - Added setting toggle to give information on new shoulder riders.
 - Added S grade to only appear if all secrets in a level are found.
 - Added hint icons to gamepad rebind menu.
 - Added different sprites for trophies, medicola, burgers, and coins.
 - Added 2 more achievement sprites.
 - Added to the manual to reflect changes to settings.
 - Added notification for successful checkpoint activation.
 - Added all 6 riders to also be collectables. They can still be obtained by defeating enemies with a charge shot.
 - Added amp explanation in the first level.
 - Added coins to the HUD whenever they're collected, or you stand next to a cola machine.
 - Modified coins to not emit particles if frame rate is too low.
 - Modified green shooter enemies to shoot after 2 seconds instead of immediately.
 - Modified camera speed when player has red rider speed.