Round 14[edit]
The fourteenth round contains fifteen platforms with five regular doors (one of which has a knob on both sides), two power doors, two levers, four regular trampolines and four Mewkies; by this point, Mappy and Mapiko's chances of collecting items in pairs for maximum points shall have become very small.
Round 15[edit]
The fifteenth round, which is the first normal one without regular doors, contains fifteen platforms with two power doors (one of which has a knob on both sides), five levers, four regular trampolines and four Mewkies; the text of "HURRY" will also fly across the screen after less time has passed at this point.
Round 16[edit]
The sixteenth round, which contains one regular door, also has fifteen platforms, two power doors, two levers, six regular trampolines and four Mewkies; the mice can also break through two of the trampolines if they have to (but unlike the one on the tenth round, they will not regenerate). After clearing this round, the game will announce the fourth bonus round, with the text "BONUS ROUND. STING 
S IN TIME." - and as with the first three, it contains ten red balloons and one randomly-placed Nyamco balloon (and the mice shall once again have thirty seconds to collect all eleven balloons between them).
Round 17[edit]
The seventeenth round contains forty regular trampolines; after either mouse has collected the second red balloon, they must both take the upper-right path (as the left one is a dead end), and after either mouse has collected the sixth red balloon, they must both take the upper-left path (as the right and upper-right ones are again dead ends). The dimmed images of the Nyamco balloon at the top of the map yet again show where it may be placed, but if you take one, two or all of the wrong paths and have to go back, it may once again not be possible for you to finish the round before the timer runs out.
Once either mouse has collected the Nyamco balloon, the stars in the background shall glow; the text "EARNINGS" will then be displayed at the top of the screen as the balloons both players collected are displayed under their mice (they shall receive 200 points for every red balloon they collected and 2000 points for the Nyamco balloon). If Mappy (or Mapiko) collected all eleven of the balloons in a one-player game he will also receive a "PERFECT" bonus of 10000 points - however, in a two-player game, the mouse who collected the Nyamco balloon shall receive a "WIN" bonus of the same value.