Here are some cheats for Riding Hero (set 1 & set 2).
Thanks to Pugsy for all of the cheats except the AES fix one (that one's mine

)
ab86 move.b D0, $200001.l
ab8c move.b $10119d.l, D2
ab92 move.w #$1000, D3
ab96 move.b $300001.l, D0
ab9c tst.b $10fd82.l <<<< the problem begins here
aba2 beq abae <<<< Jumps to loop
aba6 btst #$5, D0
abaa bne abe0
abae move.b $200000.l, D0 <<<< loops starting here
abb4 eor.b D2, D0
abb6 btst #$3, D0
abba bne abc6
abbe dbra D3, abae <<<< causes loop
abc0 dc.w $ffee; opcode 1111
abc2 moveq #-$1, D0
abc4 rts
or if you don't like using cheats, you can use these patches, but they will cause incorrect CRCs in Uni-Bios.
For Riding Hero (set 1)
Neo68KROM[0xABA4] = 0x3C; // change beq
For Ridign Hero (set 2)
Neo68KROM[0xABDA] = 0x3C; // change beq