I still haven´t finished LOTLD 2 yet, but now that the topic "reappeared" i might give a few updates. The problem, besides time, was/is that the combos i have in mind are completely horrible to play, partly because basically the whole part consists of glitches (6 different, 12 in total). Furthermore i had recorded most of the videos, but then i came up with better combos and now i have to redo almost all of them.
The most improvements are sadly just thanks to glitches: In the 1st area there is the superswim glitch (or however it´s called) and in the 2nd and 3rd area (balloon room, and grim keeper room) there are two ESJ which allow you to get out of bounds.
So basically you always use the two ESJs to return to the 1st area, then get the lockjaw, activate the superswim glitch, swim whereever you like and play the combos with a powerup:
Grim keeper combo: You swim to the upper platform of the 3rd area, get the single yellow gem, kill the grim keeper below in combo and finish with the piggybank and the red gem; all with the lockjaw. (1240 points)
Secret room combo: You swim to the secret room. Then, while swimming, you collect most of the yellow gems which are at your height (As you know, you can´t swim up- or downwards). Then you can get one of the throttle copter powerups and collect the rest, still in the same combo. (13630 points)
Last room combo: You swim to the grim keeper room. Then quickly run to the last room (This way should be faster, than swimming directly to the last room). Now you can play the combo with the lockjaw at the beginning, the powerup will run out at some point though (Testing and recording it won´t be fun

). You can also kill the very last hoodblaster (the one with the yellow can) with the shock rocket in time. You just have to quickly kill the hoodboom before. (depending on where the lockjaw will run out, i´d say 5500-6000 points)
I succeeded in all these combos, so they´re possible. The only problematic combo is the first one of the part. The idea is to combine the balloon combo with the matuvu-tribelle combo by killing the last hoodstormer (from the balloon combo) from a great distance, then perform a SJ and kill one of the two hoodblaster (from the matuvu-tribelle combo) in time. Then you can continue with the rest. (In the optimal case 24020 points)
Also we shouldn´t forget the wooden door. (20 points)
→ The maximum in part 2 should be between 44k and 45k, however in case the idea for the 1st combo won´t work, the score might be a little bit lower.
The maximum in part 1 is 45930 by now and part 3 should give us at least 32810 points (considering the final combo will work completely, because that might be a problem). With all the old ideas even more than 40k points would be possible in part 3, however it´s very unlikely.
I will assume the 1st combo in part 2 and the final combo in part 3 will work:
→ Worst case: 45930 + 44k + 32810 = 122,740
→ Best case: 45930 + 45k + 40k = about 131k (However the maximum could go only up to 126k)
That means a new maximum is more than likely

, only the part of the final combo, where you have to use three piggybanks to keep the combo alive, makes me doubt.
With the IPG you can get even more points in part 2 (over 2k more), so maybe 126k in LOTLD will be possible soon?
From June onwards i´ll have (for some time) much more free time, so i´ll be more active then and probably finish the investigations and videos in LOTLD part 2 and 3. Then i´ll also improve my score and start investigating some other levels.
GOT4N wrote:I tried redoing FC, but max I got was 23146 points haha
Not too bad.

When you´ll always try to make the combos as long as possible, take worthful items (matuvu, tribelle, green gem, ...), if possible, at the end of a combo and always get a powerup before you start a combo, you´ll surely improve your score very quickly by many points; you even don´t need to use any complicated combos or glitches.