This new puzzle type needs a name {EXTREME EDITION}

_{A companion puzzle to the ‘This new puzzle type needs a name‘ series, and inspired in part by @JeremyDover’s answer to a recent question.}

Usually, puzzles in this series comprise a mash-up of two puzzle types, and the solver is challenged to solve the first, identify and solve the second, then derive the hidden name. This puzzle, however, takes this to another level…

This puzzle combines [NUMBER REDACTED] puzzle types. It began as an effort to create a nonogram which leads to a slitherlink, as per the post linked above… then things got out of hand! All I will tell you is this:

1. The first four puzzle types you must solve are a HEYAWAKE, a NONOGRAM, a NURIMEIZU, and a SLITHERLINK (not necessarily in that order).
2. After that, deduce and follow the further instructions.
3. The ultimate answer to the puzzle is a thematic 11-letter word. Once you find that word, there are no more puzzles to solve.

(BONUS: There is also one further difference to the other puzzles in this series – this time, if you solve it, you get to name it! Acceptable names must follow the usual spirit of the series.)

You are provided with the image below, comprising the main puzzle grid, a separate grid for solving the nurimeizu, and a suite of shapes (20 pentominoes). Instructions for heyawake and nurimeizu (arguably the two least well known of the puzzle types incorporated here) are provided at the bottom of this post.

Note that due to the constraints of constructing this puzzle in as compact a way as possible, difficulty levels of sub-puzzles do vary – some are definitely trickier (or easier) than others – and at one point deducing your next instruction requires some specific knowledge about grid-deduction puzzles (although without this knowledge, the Internet will still be your friend…). Once set up correctly, however, each one can be solved purely through logical deduction, without any reliance on other sub-puzzles nor on guesswork relating to other letters and numbers in the grid.

A perfect answer will:

1. Solve all sub-puzzles through logical deduction.
2. Find the final thematic 11-letter answer.
3. Explain the key logical steps in the solutions for each sub-puzzle.
4. Suggest a name for the puzzle in keeping with the usual naming conventions of the series.

Good luck!

^{Colourblind-friendly version available here. A .xlsx version of the image is available via filedropper.com.}

_{Rules of Heyawake: (adapted from @Deusovi’s introductory puzzle)
– Shade some cells of the grid.
– Shaded cells cannot be orthogonally adjacent; unshaded cells must be orthogonally connected.
– There cannot be a horizontal or vertical line of unshaded cells that passes through two borders.
– If a number is in a room, there must be exactly that many shaded cells in that room.}

_{Rules of Nurimeizu: (adapted from Nikoli)
– Make walls by painting cells under the following rules, and create a maze which goes from S to G across only white cells.
– The areas enclosed by bold lines are called "Rooms". All cells in a Room have to be painted over or left white.
– White cells cannot be entirely cut off by painted cells, and white cells must not form a loop.
– The Rooms with S, G, ○(circle), and △(triangle) cannot be painted. All the ○(circle) cells will be on the shortest way from S to G, and there are no cells with △(triangle) on the shortest course from S to G.
– Black and white cells cannot cover 2×2 or larger squares.}