Supercade alpha 3 savestate

i’d like to use juli and classic mode … maybe some NVRAM setting? or just a savestate? if it is impossible to do, then can someone show me how to insert these time unlock cheat codes ? i mean cream (default), red, green, blue and light blue screen? i ask this because i really can’t unlock these codes… i’ve tried but nothing comes up… for example for the first code i have to insert the gouki raging demon input then start + LP ; has this to be done quickly or slowly?

if you are confused, try this website: cps2-shock .

i hope you understand.

thanks.