Through the terminal:
1) sudo gainroot
2) apt-get install nano (if you don't have nano installed already)
3) nano /usr/sbin/mmc-mount
Edit it to: (without the '----')
------
#!/bin/sh
mount -t vfat -o $3,noauto,nodev,nosuid,noatime,nodiratime,utf8,uid =29999,shortname=mixed,dmask=000,fmask=000,rodir "$1" "$2" > /dev/null
------
Ctrl-X, then Y
4) nano /etc/default/mount-opts
Edit it to: (without the '----')
-----
# Options for mounting user's filesystems

home_opts="rw,noatime,errors=continue,commit=1,dat a=writeback"
fat_opts="noauto,nodev,nosuid,noatime,nodiratime,u tf8,uid=29999,shortname=mixed,dmask=000,fmask=000, rodir"
-----
Ctrl-X, then Y
5) exit
6) mkdir /home/user/MyDocs/pre
7) cp -r /home/user/applications /home/user/MyDocs/pre
8) ln -s /home/user/MyDocs/pre/applications /home/user

When you install games, install them to MyDocs/pre/applications.

Careful, if these steps are not taken carefully, you might have to go for a reflash