Time Ace (Nintendo DS)

In 1914, eccentric scientist Dr. Hugo Clock created a time machine with the plans of going back in time and preventing World War I from happening and preventing millions of needless deaths. However, his sneaky assistant, Dr. Klaus Scythe, hijacks his time machine with a plan to acquire an arsenal of history's most powerful weapons in order to rule the world. Now Dr. Clock must pursue Scythe through time and prevent him from unleashing the aerial war machines of the future on an unsuspecting era.