I don't have a cheat table no, but the points to unlock the weapons are the same type as ammo, that is, 4 byte. Grab pistol, shoot a square or whatever to get some points, hit ESC to pause the game (and timer), scan for exact value. You only need to do that twice or maybe three times to find the set of values. There is five or six results, one is for display counter, others are for unlocking weapons. Add all of them, and then select all, set value to say 50K. Unpause game and shoot one more item. Done.
As for the timer for the level, I expected that to be a float, with the amount in milliseconds, but would need to test that.