Coming in the next update is a much requested feature: the option to see the Ultimate combination weapons/items when discovered!
How it will work: An new tab has been added to the menu. This can be viewed at any time during a run. Here's a sneak peek:
At first, you'll just see ??? + ???. When you discover an Ultimate combo, this will fill in the weapon/items needed. Forever. No more confusion about what just activated what!
For players that have already unlocked some combos, on start up existing achievements will be checked, this should track existing combos and update, but this will require some further testing.