About Drill UFO
How to play a Drill Invader １．Please touch a "start" button after reading an explanatory note. ２．Please touch a "Go" button, after a game screen appears. A game sta
How to play a Drill Invader
１．Please touch a "start" button after reading an
explanatory note.
２．Please touch a "Go" button, after a game screen
appears. A game starts.
３．After formula UFO appears, please touch "←""→"
button and move an attacker (▲)to just under UFO.
４．Please touch the "Attcker" button after making the
answer of calculation using ten key.
５．UFO can be shot down if an answer is right.
６．If you touch a "continue" button, you can go to the
next stage.
７．If you go to the next stage, the speed of UFO will
rise or the number of UFOs will increase.
A Drill Invader's feature
１．An arithmetical basic problem is set.
２．If a stage rises, time required for calculation will
become short.
３．If a stage rises, the problem displayed simultaneously
in creases.
３．A high score will be obtained if UFO is shot down in a
high position.
４．The number of problem is 78questions(6 stage).
Those who should do a Drill Invader
The person of all the ages which person be able to use
division and multiplication.
Please use for the rise of your calculating ability, or
maintenance of calculating ability.
Previous Versions
Here you can find the changelog of Drill UFO since it was posted on our website on 2016-10-17 23:23:25.
The latest version is 1.0 and it was updated on 2026-06-14 13:36:54. See below the changes in each version.
Drill UFO version 1.0
Updated At: 2012-08-31
Disclaimer
Official Google Play Link
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