Shoot down the massive meteorites to protect the earth!

Tap the meteor to destroy.
You can earn more defense budget by destroying a larger, tougher meteorite.

Avoid miss tapping. The accurate attack will rase the increase rate of
the defense budget.

Special items will appear after destroying a sufficient number of
meteorites.

Special items are...
recovery - restores the earth's defense level.
missile - destroys all the meteorites on the screen.

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-Caution-
If ringer volume is minimum while inputting your name, some SE is not going to be played.