Doesn't really seem to be worth its own thread, but I couldn't think of a good place to post it, so...
All main stages and Game Land stages have a time limit of 2:30, 4:50, 6:27, or 8:09. Each type of boss has its own time limit; the Tropical Resort Ferris Wheel style has a 3:20 time limit, the Sweet Mountain style has a 6:05 time limit, the Starlight Carnival style has a 5:33 limit, and the final boss has an 8:02 limit.
For the time bonus, it varies depending on the time limit, but it always starts at X amount and decreases by Y once every second:
Stages
Time Limit Starting Amount Decrease
2:30 150000 1000
4:50 320000 1100
6:27 465000 1200
8:09 685000 1400
Bosses
Time Limit Starting Amount Decrease
3:20 1000000 5000
6:05 950000 2600
5:33 800000 2400
8:02 4100000 8500
Here's a list of the time limit on each stage:
TR1 4:50
TR2 4:50
TR3 6:27
TR4 2:30
TR5 4:50
TR6 2:30
TR Boss 3:20
SM1 6:27
SM2 4:50
SM3 4:50
SM4 6:27
SM5 4:50
SM6 4:50
SM Boss 6:05
SC1 8:09
SC2 4:50
SC3 4:50
SC4 4:50
SC5 8:09
SC6 2:30
SC Boss 5:33
PW1 8:09
PW2 4:50
PW3 4:50
PW4 4:50
PW5 2:30
PW6 6:27
PW Boss 3:20
AP1 8:09
AP2 2:30
AP3 4:50
AP4 8:09
AP5 4:50
AP6 8:09
AP Boss 6:05
AC1 8:09
AC2 8:09
AC3 2:30
AC4 2:30
AC5 2:30
AC6 8:09
AC Boss 5:33
TV1 4:50
TV Boss 8:02
TV2 2:30
Game Land
1-1 2:30
1-2 4:50
1-3 6:27
2-1 6:27
2-2 4:50
2-3 4:50
3-1 6:27
3-2 4:50
3-3 4:50
4-1 4:50
4-2 2:30
4-3 4:50
5-1 6:27
5-2 4:50
5-3 4:50
6-1 4:50
6-2 6:27
6-3 6:27
7-1 4:50
7-2 6:27
7-3 4:50
...And yeah, they're seriously weird numbers like "6:27" and "465000". I have no idea why.
Hopefully someone finds this useful.
It wouldn't be the first time I spent a bunch of time on something and no one cared... >_>