I had made these two riders too
but i found that the sprites, effects and snd are amost the same as yours
only the icon and cmd have changed
Could I get a reasonable explaination for this?
http://tieba.baidu.com/p/2133434345?pid=29050073920&cid=30749990222#30749990222
http://tieba.baidu.com/p/2019120232?pid=27143516560&cid=0#27143516560
http://tieba.baidu.com/p/1700797563?pn=1
http://tieba.baidu.com/p/2243314043?pid=31228631831&cid=0#31228631831