Random returns a value from 0 to 0xff.
Instead of doing extra work, most probabilities are out of 0xff.
Convert these from percentages at build time for readability.
UnknownText_0x1aa0dc: ; 0x1aa0dc
db $0, "Nihihi! This GYM", $4f
db "is great! Only", $51
db "girls are allowed", $4f
db "here!", $57
; 0x1aa115
is now
UnknownText_0x1aa0dc: ; 0x1aa0dc
text "Nihihi! This GYM"
line "is great! Only"
para "girls are allowed"
line "here!"
done
; 0x1aa115