Yoshi\'s Island DS (U) +3 Trainer by cracker

It includes:
Infinite Lives
Infinite Mario Time
Infinite Eggs

Note: Extract the contents of the zip to a folder 
along with your game and Xdelta 
(http://www.cheaters-heaven.com/component/cheaters/38990/PC/xdelta-command-line-tool.html)
or (http://evanjones.ca/software/xdelta.exe) then run cr-yidsp3.bat