Time limit in The Ur-Quan Masters

It really depends on the type of enemy you are fighting. It is a pure counter to the Chenjesu Broodhome, as the energy recharges sproadically so the DOG can't get to them easily. The Umgah Drone weapon does insane damage and can usually block/destroy any incoming projectile weapons (awesome against the Chenjesu Broodhome crystal attacks). . I find often that if I am able to turn and face the enemy, I would just charge blinding forward, get close enough to blast them. This works best if the enemy moves slowly or have a giant planet behind them.

Another technique I use is using the edges of the cone attack to nick the enemy. The width of the corn is much greater size than your ship. As long as I'm close enough to zip toward them, I turn my ship in such a way that as I zip past them, the corners of my cone attack nicks the enemy, which is usually sufficient to do great amount of damage.

Can you not re-map the keys in DOSBox itself? I believe this may change your keyboard mappings for text entry as well, but there are very few (if any) places in SC2/UQM where text entry is absolutely necessary.