I have been hard at work with a little something to show you guys. I'm not quite there yet but have been having alot of fun in the process 

Here goes.
Imagine you have a 16x16 graphic that looks like an L. Hypothetically this graphic could be repeated 4 times to create a box.
spr_ctrl(FLIP_MAS|SIZE_MAS, 
NO_FLIP |SZ_16x16);  =     Bottom Left Box 
spr_ctrl(FLIP_MAS|SIZE_MAS, 
FLIP_X |SZ_16x16);     =    Bottom Right Box
spr_ctrl(FLIP_MAS|SIZE_MAS, 
FLIP_Y |SZ_16x16);     =    Upper Left Box
Upper Right of Box =  
](https://www.pcenginefans.com/forum/Smileys/default/eusa_wall.gif)
Does anybody know the secret codes to flip in both X and Y? I have messed around to no avail.
This is me...my box has a leak.
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Thanks!