気になったことを取り上げています。
<mamelayout version="2">これをzip圧縮したらinvaders.zipにリネームして使う。
<element name="overlay_jpn">
<rect>
<bounds left="0" top="0" right="224" bottom="32" />
<color red="0" green="1" blue="1" />
</rect>
<rect>
<bounds left="0" top="32" right="224" bottom="64" />
<color red="0" green="1" blue="0" />
</rect>
<rect>
<bounds left="0" top="64" right="224" bottom="96" />
<color red="1" green="1" blue="0" />
</rect>
<rect>
<bounds left="0" top="96" right="224" bottom="128" />
<color red="1" green="0" blue="1" />
</rect>
<rect>
<bounds left="0" top="128" right="224" bottom="160" />
<color red="1" green="0" blue="0" />
</rect>
</element>
<view name="Color Overlay_JPN">
<screen index="0">
<bounds x="0" y="0" width="224" height="260" />
</screen>
<overlay element="overlay_jpn">
<bounds x="0" y="48" width="224" height="160" />
</overlay>
<bezel element="overlay_jpn">
<bounds x="0" y="48" width="224" height="160" />
<color alpha=".15" />
</bezel>
</view>
</mamelayout>