Cold Fusion: The first parts are straight forward. Double or Nothing -> two passing motions becomes a 1.5 mount -> flip over and back but with an extra mini flip. The hard part is making the final trapeze. This will become easier once to you’re used to doing eli hops. If you insist on mastering this before eli hops, then just practice it. The key for me was to keep the yoyo and the strings on more or less the same plane.
Kwijibo: The key here is to try and catch the yoyo on the crossing parts. First, you can try eli hops again. If you insist on not doing so, then keep practicing with the crossing and catching. What worked for me was: 1) catch the yoyo myself while doing the first turn over during the first toss and 2) try to keep the crossing arm the only moving one during the second toss. After that, it’s all natural for me. On the flip side, I still couldn’t do variations of kwijibo.