A hint for you, guys : at each level, try to destroy the lowest row, then continue with the side columns. They will rapidly slow down and then would become more easy to avoid ! ^^
A hint for you, guys : use your first finger for the D key, your ring finger for the A key and your thumb for the W key (you don't really have to use the S key...)
 "Space Invaders"){kind=icon}
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 "Momiga"){kind=icon}
 "Understanding Games: Episode 2"){kind=tracking}
 "Runner"){kind=icon}
 "Understanding Games: Episode 1"){kind=tracking}